Roller-bearing mine-car wheel.



I w. J. McDONALD.

ROLLER BEARING MINE CAR WHEEL.

APPLICATION FiLED DEC. I, 1915.

Patented May 1916.

In venfor J j! ffia/mz Mil/01 vwy able others skilled in wheel. The apertures and especially CAR AND FOUNDRY COMPANY, JERSEY.

WILLIAM J. McDONALD, OF HUNTINGTON, WEST VIRGINIA, OF ST. LOUIS, MISSOURI,

ASSIGNOR; TO.AMERICAN A CORPORATION OF NEW ROLLER-BEARING MINE-OAR WHEEL.

To all whom it may concern Be it known that I, WILLIAM J. Mo-

.DoNALn, residing at Huntington, West V irginia, and being a citizen of the United States, have invented certainnew and useful Improvements in Roller-Bearing Mine- Car Wheels, of which the following is a full, clear, and exact description, such as will enthe art to which it. appertains to make and to use the same, reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though it is to be understood that the invention is not limited to the exact details of construction shown anddescribed, as it is obvious that various modifications thereof will occur to persons skilled in the art. v

In said drawings: Figure 1 isa side elevation of the maj or portion. of the improved mine car wheel. Fig. 2 is a vertical transverse section through the wheel shown in Fig. 1. Fig. 3 is an elevational view of the inner end of the hub, one-half of the closing cap being removed at the leftin said figure, and Fig. 4 is a side elevation of onehalf of the partitioning annulus. I

The present invention reltes to wheels to those of the mine car type, and it has for an object the subdivision of a chamber in a wheel-hub by a separately formed annulus to produce in said hub an oil chamber and roller-bearing chamber. It is also proposed that the partitioning annulus shall be perforated for the passage of a car axle therethrough, and also to provide communication from the oil chamber to the roller-bearing chamber, so that a rollerbearing assembly therein may be perfectly lubricated at all times.

- A further object is to provide the, oil

chamber with apertures whlch will serve the double function of forming inlet and outlet passages for a supply of lubricant and also be a means for inserting a locking device adapted t be attached to the car axle to prevent unintentional withdrawal of the through the walls of the oil chamber are also to be disposed so that said device may be readily manipulated afterits entry into said oil chamber and while it is being attached to the axle, aswell as when it is being withdrawn to allow the removal of the car-wheel.

I Specification of Letters Patent.

' Application filed December 1, 1915.

Serial No. 64,514.

' It is also proposed that one end of the hub shall be open affording convenient means for inserting a roller-bearing assembly within a chamber formed for its reception, and a frictional retaining closure is provided to keep the open end of said chamber well closed while the wheel is in service,

Other advantages will appear-hereinafter, and are all a part of the present invention.

Referring to the drawings, 1 is a conventional form of wheel rim connected by spokes 2 to a hub 3, which hub is provided with a large single chamber 4:, the outer end of the chamber being closed and the inner end open. Intermediate the extremes of the chamber is an internal seat which may be formed in various ways but which in the present illustration has 'been shown as being produced by the annular flange 5. .A .par-

tition-forming annulus 6 is adapted to be inserted through the open end of chamber 4 and seated against flange 5, properly positioning the same, and it is preferable that there shall be a relatively tight fit between the periphery of the annulus 6 and the internal surface of the chamber, so that said annulus will be frictionally sleeve 7 is also inserted through theopen end of the largechamber 4, its inner annular edge bearing against one of the sides of annulus 6 so that the latter is positioned and held between the flange or seat 5 and said sleeve; A roller bearing assembly comprising a plurality ofrollers or other antifriction devices 8 and roller supporting rings 9 at opposite sides of said rollers, into which rings project journals from the rollers 8, is inserted through the open end of the large chamber 4-, into what the partitioning annulus 6 converts into a roller-bearing chamber,

The roller-bearing assembly is retained in placeby a cap or cover 10, which is centrally perforated and has an annular flange 11 which fits over the outer edge portion of sleeve 7 the contiguous portion of the chamber'in the hub having a somewhat enlarged diameter toaccommodate said annular flange 11 of the end closing cap 10, adjacent end of sleeve 7 extending a suitable amount into said cap. An annular groove between the exteriorof sleeve 7 and theinner surface of the chamber is thus provided for the reception of said flange 11.

retained. A

Patented May 23, 1916.

however, after long service of what tations of A car axle 12, which may be stationarv but which ordinarily in mine car practice is free to revolve, extends through a central perforation in cap 10 and also through the roller-bearing assembly, the roller-bearings 8 bearing thereagainst and against sleeve 7, and continues through the partition forming annulus 6 extending a material distance into the oil chamber 13. That the wheel may be properly retained on the axle, a linch pin 14 is passed through a hole through that portion of shaft 12 chamber 18. is conveniently made by inserting it through one of the openings 15 present in the shell of the hub, and within the oil chamber zone, Openings 15 are preferably diametrically which extends into oil opposed so that the linch pin may be inserted through one of them and after passing through the axle 12, may have its free ends upset bya tool inserted-through the opening 15 on the opposite side. Plugs 16 are employed to maintain the oil chamber 13 normally closed from the exterior but either one of such plugs may be removed for filling the chamber with a lubricant such as oil, and after the chamber contains a supply of lubricant, adjustment or removal of the linch pin 14 will usually be madewith the openings 15 in a horizontal position, whereby escape of the lubricating fluid is avoided. When, it is desired to replenish the supply of lubricant, openings 15" may be vertically arranged and the uppermost plug 16 removed to permit the filling of the oil chamber. If the condition of theformerly used lubricant is such that it is desired to drain the chamber, the removal is then the lowermost plug 16 will allow such drainage to take place in such manner as to leave substantially no residuum of the undesirable lubricant.

When the Wheel has been assembled, and the oil chamber filled with lubricant, it is ready for service and lubricant will feed through holes 17 in the partitioning annulus 6 intothe roller-bearing chamber and the action. of the axle and the rollers 8 of the roller bearing assembly will distribute it throughout the contacting surface of said axle, rollers and sleeve, keeping the wheel in a highly lubricated condition.

If at any time there are outward manifestrouble in the roller-bearing as sembly, aneasy inspection may be had by simply springing cap 10 out of place, whereupon the adjacent roller-supporting ring 9 may be removed and any or all of the rollers 'wlithdirawn and defective rollers may be rep ace It is obvious that I have devised a wheel suited tobe used in connection with mine car wheels, and that it is simple and compact in construction and requires a minimum amount of attention and repairs. 'It is also Application of the linch pin plain that the partitioning annulus, when the axle is in place, forms two adjacent chambers, one of which is of the closed type and the other of which has an open end which is adapted to be closed by a cap which makes this chamber as much of a closed chamber as is the oil chamber.

What I claim is:

1. In combination in a wheel, a hub having a single chamber, a frictionally retained partitioning member therein forming a closed chamber and an open end chamber, an end closure for the latter, a roller bearing in the open end chamber, an axle extending through said closure and partitioning member and into said closed chamher and locking means on said axle within the closed chamber.

2. In combination in a wheel, a hub having a single chamber and a seat therein, a separately formed partitioning member retained against said seat forming a closed chamber and a roller bearing chamber, a roller bearing in the latter, an axle extending therethrough andinto said closed chamthe closed chamber.

3. In combination in a Wheel, a hub having a chamber, a separately formed partitioning member retained therein and forming a closed chamber and a roller bearing chamber, a roller bearing in the latter, an axle extending through the same and said partitioning member and into said closed chamber and locking means connected with said aXle within said closed chamber.

4. In combination in a wheel, a hub having a chamber and an annular seat intermediate its ends, a separately formed partitioning member retained against said seat forming a closed chamber and a roller bearing chamber, a roller bearing in the latter, an axle extending through the same and said partitioning member and into said closed chamber and wheel-retaining means connected with said chamber.

5. In combination in a wheel, a hub having a chamber, a frictionally retained partitioning member forming an oil chamber provided with an aperture and a roller bear ing chamber said partitioning member being provided with oil passages communicating with both chambers, a closure for said aperture, av roller bearing in said bearing chamber, an axle extending through the axle within the closed chamber normally closed, there being oil passages communicating with both chambers, an anti-friction bearing in the bearing chamber and an axle extending therethrough and into said oil chamber.

7. In combination in a Wheel, a hub having a chamber open at one end and being closed at the other end and provided with apertures near the closed end, a separately formed partitioning annulus retained in said chamber forming an oil chamber containing said apertures and an open end roller bearing chamber, there being oil passages through said annulus, removable closures for said apertures and bearing chamber open end, a roller bearing in the bearing chamber and an axle extending therethrough and into said oilchamber.

8. In combination in a Wheel, a hub provided with a chamber having an open end and a closed end there being apertures therethrough near the closed end and an internal seat, a separately formed partitioning annulus retained against said seat, perforated for oil passage and forming an oil chamber containing said apertures and a roller bearing chamber, a roller bearing in the latter, a retainer therefor,-an axle extending through the bearing chamber and annulus and into said oil chamber, locking means adapted to be inserted through said apertures and secured to said axle, and closures for said apertures.

9. In combination in a wheel, a hub provided with a chamber having open and closed ends and an internal seat, a sleeve Within said chamber, a separately formed partitioning annulus held between said seat and sleeve forming an oil chamber and a roller bearing chamber, a, roller bearing 1n sleeve, said annulus forming a plurality of chambers, a roller bearing in one of such chambers engaging said sleeve, a retainer therefor, and an axle passing through said roller bearing and into another of said chambers.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

WM. J. MCDONALD.

Witnesses:

JOHN PENHALE, C. H; Rum. 

